XML 38 R21.htm IDEA: XBRL DOCUMENT
v2.4.0.6

Non-Consolidated Affiliates | 12 Months Ended
--- | ---
Dec. 31, 2011
Note 14. Non-Consolidated Affiliates [Abstract] |
Non-Consolidated Affiliates | NON-CONSOLIDATED AFFILIATES The Company holds a 1% limited partnership interest in a partnership that owns a low-income housing tax credit multifamily housing property located in Texas. The Company has loaned the partnership $1,212 as of December 31, 2011 to cover operating expenses of the partnership and for maintaining the multifamily housing property. These advances and the accrued interest thereon are due on demand. The Company, through a subsidiary, has made a first mortgage loan to the partnership secured by the property, with a current unpaid principal balance of $1,131. Because the Company does not have control or exercise significant influence over the operations of this partnership, its investment in the partnership is accounted for using the cost method as per ASC Topic 325.

X
- Definition Entire disclosure for the Company's interest in a non-consolidated affiliate for which it accounts for under the cost method. + References No definition available. + Details
Name: | dx_NonConsolidatedAffiliatesTextBlock
Namespace Prefix: | dx_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | dx_Note14NonConsolidatedAffiliatesAbstract
Namespace Prefix: | dx_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration